Some places have mountain ranges separated by wide valleys. How does deposition change this landscape?

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Explanation:

Deposition occurs when the agents (wind or water) of erosion lay down sediment. Deposition changes the shape of the land. Erosion, weathering, and deposition are at work everywhere on Earth. Gravity pulls everything toward the center of Earth causing rock and other materials to move downhill.

b) mutualism

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1 is the answer to this problem